388785 has 8 divisors (see below), whose sum is σ = 622080. Its totient is φ = 207344.

The previous prime is 388781. The next prime is 388789. The reversal of 388785 is 587883.

It is an interprime number because it is at equal distance from previous prime (388781) and next prime (388789).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388785 - 2² = 388781 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (388781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12945 + ... + 12974.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2³⁸⁸⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

388785 is a deficient number, since it is larger than the sum of its proper divisors (233295).

388785 is a wasteful number, since it uses less digits than its factorization.

388785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25927.

The product of its digits is 53760, while the sum is 39.

The square root of 388785 is about 623.5262624782. The cubic root of 388785 is about 72.9854853234.

It can be divided in two parts, 38878 and 5, that added together give a palindrome (38883).

The spelling of 388785 in words is "three hundred eighty-eight thousand, seven hundred eighty-five".